extern const int COLS;

GtkWidget *new_table(int ncells);
void add_widget_to_table(GtkWidget *table, GtkWidget *widget, int position);
void add_widgets(GtkWidget *table, GtkWidget *widgets[]);

GtkWidget **new_images_preview_from_files(char *files_paths[], void (*)(GtkWidget *, GdkEvent *, gpointer));

GtkWidget *img_preview_table_new_from_files(char *files_paths[], void (*)(GtkWidget *, GdkEvent *, gpointer));
